About us

DIESEC™, a brand of Dietzel & Company GmbH

We are dedicated to the security of your most valuable asset: Your data.
With these requirements in mind, the foundation stones of DIESEC were laid. In 2009, Carl Dietzel founded Dietzel & Company GmbH with the goal of protecting your data against misuse and surveillance. In today's world, this is a fundamentally important task and is more complex than ever before. Therefore, we are proud to be officially certified according to ISO27001.

With our qualified staff and our years of experience in corporate IT processes, we can meet even the most complex requirements. We are happy to advise you in the areas of governance, compliance, risk management, penetration testing and employee awareness and thus ensure the structured implementation of your IT security.


Carl Dietzel, CEO

All services for you from a single source

We not only advise, but also implement!

As experts in the IT security industry, we know our responsibility to consider comprehensive security measures from the very beginning. That is why we offer more than just consulting services.We help you build secure networks and systems for the future.

We support you in implementing all necessary protective measures , thus achieving maximum security. We also respond directly to our customers' needs and offer actionable solutions, so you can play it safe with us right from the start

Our Clients

Our team advises clients from a wide range of industries, such as financial service providers, the automotive industry, social service companies and local communities. Our customers include SMEs as well as DAX listed corporations. We offer a complete portfolio from (initial) analysis to implementation.

Our Team

Our team consists of qualified consultants with expertise in cybersecurity, data protection, data security as well as developers with many years of experience in their respective fields. They also hold certifications such as ISO27001, CISSP, CISM, CISA, COBIT, and others, as well as the General Data Protection Regulation.For us, your IT security is our ultimate goal.